BRUSH HEAD MANUFACTURING METHODS

摘要

A method (200) for manufacturing a brush head (100). The method includes the steps of providing a plurality of polypropylene bristle tuft retention rings (50), and inserting a respective nylon bristle tuft (21) into each of the bristle tuft retention rings. Heat is applied to each bristle tuft proximal end (23) at a temperature sufficient to at least partially melt the bristle tuft proximal end and create a proximal head portion (26). The platen (42) of the brush head is positioned in relation to the retaining rings (50) and proximal head portions (26) to define a space (92) in relation to the proximal head portions for injection of a thermoplastic elastomer, and the thermoplastic elastomer is injected into the space to create an elastomeric matrix (30) that at least partially encompasses the neck and the proximal head portions.